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#
# tk/composite.rb :
#
require 'tk'
module TkComposite
include Tk
extend Tk
def initialize(parent=nil, *args)
@delegates = {}
@option_methods = {}
@option_setting = {}
if parent.kind_of? Hash
keys = _symbolkey2str(parent)
parent = keys.delete('parent')
@frame = TkFrame.new(parent)
@path = @epath = @frame.path
initialize_composite(keys)
else
@frame = TkFrame.new(parent)
@path = @epath = @frame.path
initialize_composite(*args)
end
end
def epath
@epath
end
def initialize_composite(*args) end
private :initialize_composite
def option_methods(*opts)
opts.each{|m_set, m_cget, m_info|
m_set = m_set.to_s
m_cget = m_set if !m_cget && self.method(m_set).arity == -1
m_cget = m_cget.to_s if m_cget
m_info = m_info.to_s if m_info
@option_methods[m_set] = {
:set => m_set, :cget => m_cget, :info => m_info
}
}
end
def delegate_alias(alias_opt, option, *wins)
if wins.length == 0
fail ArgumentError, "target widgets are not given"
end
if alias_opt != option && (alias_opt == 'DEFAULT' || option == 'DEFAULT')
fail ArgumentError, "cannot alias 'DEFAULT' option"
end
alias_opt = alias_opt.to_s
option = option.to_s
if @delegates[alias_opt].kind_of?(Array)
if (elem = @delegates[alias_opt].assoc(option))
wins.each{|w| elem[1].push(w)}
else
@delegates[alias_opt] << [option, wins]
end
else
@delegates[alias_opt] = [ [option, wins] ]
end
end
def delegate(option, *wins)
delegate_alias(option, option, *wins)
end
def cget(slot)
slot = slot.to_s
if @option_methods.include?(slot)
if @option_methods[slot][:cget]
return self.__send__(@option_methods[slot][:cget])
else
if @option_setting[slot]
return @option_setting[slot]
else
return ''
end
end
end
tbl = @delegates[slot]
tbl = @delegates['DEFAULT'] unless tbl
begin
if tbl
opt, wins = tbl[-1]
opt = slot if opt == 'DEFAULT'
if wins && wins[-1]
return wins[-1].cget(opt)
end
end
rescue
end
super(slot)
end
def configure(slot, value=None)
if slot.kind_of? Hash
slot.each{|slot,value| configure slot, value}
return self
end
slot = slot.to_s
if @option_methods.include?(slot)
unless @option_methods[slot][:cget]
if value.kind_of?(Symbol)
@option_setting[slot] = value.to_s
else
@option_setting[slot] = value
end
end
return self.__send__(@option_methods[slot][:set], value)
end
tbl = @delegates[slot]
tbl = @delegates['DEFAULT'] unless tbl
begin
if tbl
last = nil
tbl.each{|opt, wins|
opt = slot if opt == 'DEFAULT'
wins.each{|w| last = w.configure(opt, value)}
}
return last
end
rescue
end
super(slot, value)
end
def configinfo(slot = nil)
if TkComm::GET_CONFIGINFO_AS_ARRAY
if slot
slot = slot.to_s
if @option_methods.include?(slot)
if @option_methods[slot][:info]
return self.__send__(@option_methods[slot][:info])
else
return [slot, '', '', '', self.cget(slot)]
end
end
tbl = @delegates[slot]
tbl = @delegates['DEFAULT'] unless tbl
begin
if tbl
if tbl.length == 1
opt, wins = tbl[0]
if slot == opt || opt == 'DEFAULT'
return wins[-1].configinfo(slot)
else
info = wins[-1].configinfo(opt)
info[0] = slot
return info
end
else
opt, wins = tbl[-1]
return [slot, '', '', '', wins[-1].cget(opt)]
end
end
rescue
end
super(slot)
else # slot == nil
info_list = super(slot)
tbl = @delegates['DEFAULT']
if tbl
wins = tbl[0][1]
if wins && wins[-1]
wins[-1].configinfo.each{|info|
slot = info[0]
info_list.delete_if{|i| i[0] == slot} << info
}
end
end
@delegates.each{|slot, tbl|
next if slot == 'DEFAULT'
if tbl.length == 1
opt, wins = tbl[0]
next unless wins && wins[-1]
if slot == opt
info_list.delete_if{|i| i[0] == slot} <<
wins[-1].configinfo(slot)
else
info = wins[-1].configinfo(opt)
info[0] = slot
info_list.delete_if{|i| i[0] == slot} << info
end
else
opt, wins = tbl[-1]
info_list.delete_if{|i| i[0] == slot} <<
[slot, '', '', '', wins[-1].cget(opt)]
end
}
@option_methods.each{|slot, m|
if m[:info]
info = self.__send__(m[:info])
else
info = [slot, '', '', '', self.cget(slot)]
end
info_list.delete_if{|i| i[0] == slot} << info
}
info_list
end
else # ! TkComm::GET_CONFIGINFO_AS_ARRAY
if slot
slot = slot.to_s
if @option_methods.include?(slot)
if @option_methods[slot][:info]
return self.__send__(@option_methods[slot][:info])
else
return {slot => ['', '', '', self.cget(slot)]}
end
end
tbl = @delegates[slot]
tbl = @delegates['DEFAULT'] unless tbl
begin
if tbl
if tbl.length == 1
opt, wins = tbl[0]
if slot == opt || opt == 'DEFAULT'
return wins[-1].configinfo(slot)
else
return {slot => wins[-1].configinfo(opt)[opt]}
end
else
opt, wins = tbl[-1]
return {slot => ['', '', '', wins[-1].cget(opt)]}
end
end
rescue
end
super(slot)
else # slot == nil
info_list = super(slot)
tbl = @delegates['DEFAULT']
if tbl
wins = tbl[0][1]
info_list.update(wins[-1].configinfo) if wins && wins[-1]
end
@delegates.each{|slot, tbl|
next if slot == 'DEFAULT'
if tbl.length == 1
opt, wins = tbl[0]
next unless wins && wins[-1]
if slot == opt
info_list.update(wins[-1].configinfo(slot))
else
info_list.update({slot => wins[-1].configinfo(opt)[opt]})
end
else
opt, wins = tbl[-1]
info_list.update({slot => ['', '', '', wins[-1].cget(opt)]})
end
}
@option_methods.each{|slot, m|
if m[:info]
info = self.__send__(m[:info])
else
info = {slot => ['', '', '', self.cget(slot)]}
end
info_list.update(info)
}
info_list
end
end
end
end
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